Textile roller shutter fabric with stiffness and no silk falling as well as preparation method and application of textile roller shutter fabric

Abstract

The invention discloses a stiff silk-falling-free textile roller shutter fabric as well as a preparation method and application thereof, and relates to the technical field of functional roller shutters. The invention relates to a stiff silk-falling-resistant textile roller shutter fabric which is formed by weaving low-melting-point yarns and yarns made of other materials. The low-melting-point yarns are composite fibers with skin-core structures; the skin-core structure composite fiber comprises a wire core and a tubular skin layer wrapping the outer side of the wire core. The melting point difference between the skin layer and the yarn core is utilized, when heat setting is carried out within the temperature range of 50-150 DEG C, after the skin layer is melted, the skin layer is rapidly bonded with adjacent low-melting-point yarn or warp and weft yarn of other materials, gaps are filled, after cooling, the low-melting-point yarn is firmly bonded with the adjacent yarn, the whole fabric is made to be instantly stiff, and the fabric is not prone to falling off. Therefore, negative effects caused by the use of a stiffening agent, starch organic matters and an adhesive are avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of functional roller shutter technology, in particular to a hardening non-fiber shedding textile roller shutter fabric and a preparation method and application thereof. BACKGROUND

[0002] Traditional textile roller shutter is a kind of window decoration product widely used in home decoration field, the core of which is to take textile fabric as the main body, which is processed by resin and rolled into a drum-shaped structure. This kind of roller shutter usually uses a pull rope or chain as a lifting driving device, which is easy and intuitive to operate, and has practical function and decoration value.

[0003] From the structure and process, the fabric of the traditional roller shutter needs to be treated by resin hardening (such as adding acrylic, polyurethane polymer hardening agent or starch, etc. organic matter) to enhance the hardness of the fabric, so as to keep a certain shape and crispness. If necessary, an adhesive can also be added to help the fibers adhere to each other, thereby enhancing the overall integrity and durability of the fabric.

[0004] The roller shutter fabric is formed and wound on the drum support, and is matched with bottom rod, pull rope and other accessories to form a complete system. Its appearance design is simple and elegant, and after installation, it can make the window frame present a clean and neat visual effect, and create a spacious and simple style for indoor space, which is suitable for living room, study, office and other places.

[0005] For the above-mentioned roller shutter products adding hardening agent or starch and other organic matter, and adding adhesive, the inventors believe that the following shortcomings exist: the high molecular materials such as hardening agent and adhesive are prone to yellowing, and the curtain body will be soft and deformed during hanging process due to rain and moisture absorption; in addition to the above series of problems, the organic matter will also be mildewed under the condition of continuous moisture absorption and high temperature, resulting in mold spots and affecting the appearance. Therefore, how to solve the above problems is an urgent problem for those skilled in the art.

[0006] The information disclosed in this BACKGROUND section is only intended to increase an understanding of the general context of the present application, and is not to be taken as an acknowledgement that this information constitutes prior art that is already known in any form to those of ordinary skill in the art. SUMMARY

[0007] In view of the above technical problems, the present application provides a hardening non-fiber shedding textile roller shutter fabric and a preparation method and application thereof to solve the problems raised in the above background.

[0008] Firstly, the design principle of the present application is as follows:

[0009] (I) The conceptual principle of the skin layer-heat-melting adhesive functional layer

[0010] The melting point of the low-melting yarn (polyethylene terephthalate-hexanedioic acid-pentamethylene diamine copolymer) is 120-150℃. During heat setting, the low-melting yarn melts instantly and adheres to the adjacent low-melting yarn or other material in the warp and weft directions, fills the gap between the yarns, and forms a physical welding point after cooling, causing the entire fabric to stiffen instantly, replacing the chemical film forming of traditional stiffening agents.

[0011] In the molecular structure design of this low-melting modified polyester, the aim is to adjust the thermal properties of the material by copolymerizing different monomers, reduce the melting point, and improve the processing performance. Specifically, it mainly involves two strategies:

[0012] During polymerization, binary acids (such as adipic acid) or binary glycols (such as fatty alcohols) containing long-chain fatty chains are used for copolymerization. These long-chain fatty chain structures have greater flexibility, which can reduce the interaction force between macromolecular chains, thereby reducing the melting enthalpy, and further leading to a decrease in the melting point.

[0013] The introduction of non-central symmetric structures or side chain-containing segments into the macromolecular chains of the core material can affect the arrangement of the molecules, making the interaction between the segments more loose. This will increase the entropy change during melting, i.e., the degree of freedom of the molecular chains increases, further reducing the melting point.

[0014] The addition of thermoplastic elastomers to the skin layer can reduce the viscosity during melting, making the material more easily and uniformly adhere. At the same time, it can improve the flexibility of the fabric, avoid the brittleness and easy breakage after stiffening treatment, and the low melting point of the thermoplastic elastomer can further reduce the overall melting point of the skin layer.

[0015] The anti-hydrolysis agent can neutralize the carboxylic acid generated by the hydrolysis of polyester, significantly reducing the molecular chain breakage in a humid and hot environment. Nano-TiO2 and modified ZnO form an ultraviolet shielding layer, greatly improving the ultraviolet blocking ability.

[0016] (II) Conceptual principles of core-rigid support skeleton layer

[0017] The melting point of polyethylene terephthalate is between 245-260℃, and the skin layer uses a low-melting modified polyester with a melting point of 120-150℃. The difference between the two melting points is large. During heat setting, the skin layer melts first and adheres to the core, making the two completely bonded and fixed, providing good adhesion without any adhesive, avoiding the negative effects that may be caused by adding an adhesive.

[0018] Silane coupling agent modified graphene nanosheets and nano-SiO2 work together. The former builds a two-dimensional heat conduction network to speed up the heat dissipation of the roller blind, and the latter fills the gap between the fibers to increase the sliding resistance of the yarn, effectively preventing the fabric from shedding.

[0019] (III) Process integration: precise control from material preparation to function realization

[0020] The skin-core structure composite fiber is extruded synchronously through a double-channel spinning assembly, the temperature gradient is precisely controlled, the skin uniformly wraps the core, and a defect-free composite fiber is formed.

[0021] The heat setting treatment maximizes the skin welding points, and permanent stiffening can be achieved without chemical additives.

[0022] II. A hardening non-fiber shedding textile roller shade fabric is woven from low-melting point yarn and other material yarn; the low-melting point yarn is a skin-core structure composite fiber;

[0023] The skin-core structure composite fiber includes a core and a skin wrapped outside the core in a tubular shape;

[0024] The components of the skin, by mass fraction, include: 30-40 parts of low-melting point modified polyester, 10-15 parts of thermoplastic elastomer, 5-8 parts of hydrolysis-resistant agent, 3-5 parts of nano-TiO2, and 2-3 parts of silane coupling agent modified nano-ZnO;

[0025] The components of the core, by mass fraction, include: 50-60 parts of polyethylene terephthalate, 5-8 parts of silane coupling agent modified graphene nanosheet, 3-5 parts of nano-SiO2, and 2-4 parts of compatibilizer.

[0026] Preferably, the other material yarns specifically include one or more of polyester, nylon, polypropylene, acrylic, and vinylon; functional master batches can be added to the other material yarns to achieve the effects of ultraviolet resistance, flame retardance, or antibacterial properties.

[0027] Preferably, the warp yarn spinning method of the fabric includes ring spinning, air spinning, compact spinning, siro spinning, sirofil spinning, etc.

[0028] Preferably, the weft yarn spinning method of the fabric includes ring spinning, air spinning, compact spinning, siro spinning, sirofil spinning, etc.

[0029] Preferably, the warp yarn of the fabric is a filament, including: FDY, POY, ATY, and DTY.

[0030] Preferably, the weft yarn of the fabric is a filament, including: FDY, POY, ATY, and DTY.

[0031] Preferably, the fabric weaving includes rapier, air jet, water jet, etc.

[0032] Preferably, the fabric weave structure includes plain weave, twill weave, satin weave, etc.

[0033] Preferably, the fabric is woven into different weave structures through different weaving methods, and has a better appearance design.

[0034] Preferably, the fabric is woven into a functional structure by different weaving methods.

[0035] Preferably, the fabric has sound-absorbing, light-shielding, etc. functions by different weaving methods

[0036] Preferably, the fabric style includes bamboo joints, multi-color composition.

[0037] Preferably, the fabric is desized, degreased, shaped, inspected, packaged, etc.

[0038] Preferably, the fabric cutting method includes: ordinary cutting bed cutting, plasma cutting, ultrasonic cutting, etc.

[0039] Preferably, the low-melting-point modified polyester is polyethylene terephthalate-adipic acid-pentaerythritol diamine copolymer; the melting point of the polyethylene terephthalate-adipic acid-pentaerythritol diamine copolymer is 120-150℃.

[0040] Preferably, the preparation method of the polyethylene terephthalate-adipic acid-pentaerythritol diamine copolymer comprises the following steps:

[0041] S31: mixing polyethylene terephthalate and adipic acid with a mass ratio of 1:1.1; heating at a temperature of 230-290℃, adding a titanate catalyst to promote the reaction to generate an esterification intermediate;

[0042] S32: continue to add pentaerythritol diamine gradually, the mass ratio of pentaerythritol diamine to the total mass of polyethylene terephthalate and adipic acid is 0.1:1-0.2:1; pentaerythritol diamine reacts with ester groups to form copolymer segments;

[0043] S33: heating the reaction system to 290℃, applying vacuum to remove water or alcohol generated in the reaction to obtain polyethylene terephthalate-adipic acid-pentaerythritol diamine copolymer.

[0044] Preferably, the thermoplastic elastomer is ethylene-vinyl acetate copolymer; the hydrolysis-resistant agent is carbodiimide.

[0045] Preferably, the preparation method of the silane coupling agent modified nano-ZnO comprises the following steps:

[0046] S51: put nano-ZnO powder into 5% ethanol aqueous solution, ultrasonically disperse at 60-80℃ for 30-60 minutes to remove surface impurities and moisture; then wash with deionized water until neutral, vacuum dry at 80-100℃ for 12-24 hours;

[0047] S52: The silane coupling agent is added to a mass ratio of 9:1 of ethanol-water mixed solution at a mass ratio of 1:5-1:10, stirred uniformly, and hydrolysis activated by adjusting the pH to 4-6 with acetic acid, and then left for 10-20 minutes;

[0048] S53: The pretreated nano-ZnO is slowly added to the silane coupling agent solution, stirred in an oil bath at 60-90℃ for 2-4 hours, and protected by nitrogen to prevent agglomeration; after the reaction is completed, the mixture is centrifuged at a speed of 5000-8000r / min for 10-15 minutes, and the precipitate is collected;

[0049] S54: The precipitate is washed with anhydrous ethanol for 2-3 times to remove the unreacted coupling agent; then the washed precipitate is dried in a vacuum drying oven at 60-80℃ for 6-12 hours to obtain silane coupling agent modified nano-ZnO powder.

[0050] Preferably, the preparation method of the silane coupling agent modified graphene nanosheet comprises the following steps:

[0051] The graphene oxide is dispersed in anhydrous ethanol with a mass fraction of 1%, and 10% of the mass of the graphene oxide is added as silane coupling agent KH570, and then ultrasonic stirring is performed at 60℃ for 4h, and the silane coupling agent modified graphene nanosheet is obtained after centrifugal drying.

[0052] Preferably, the compatilizer is maleic anhydride grafted polyethylene.

[0053] A manufacturing method of a hardening and non-filament-dropping textile roller shade fabric as described above, comprising the following steps:

[0054] S91: The low-melting modified polyester, the thermoplastic elastomer, the hydrolysis-resistant agent, the nano-TiO2, and the silane coupling agent modified nano-ZnO are added to a double-screw extruder, and blended and granulated at 150-180℃ to obtain a skin layer master batch;

[0055] S92: The polyethylene terephthalate, the silane coupling agent modified graphene nanosheet, the nano-SiO2, and the compatilizer are added to a high-speed mixer, mixed at 100-150℃ for 15-20min, and then granulated by a double-screw extruder at 260-280℃ to obtain a core master batch;

[0056] S93: The skin layer master batch and the core master batch are respectively melted by a screw extruder, extruded from a spinneret through a composite spinning assembly to form a skin-core structure fiber, and the composite fiber is obtained after cooling, oiling, and winding; wherein the composite spinning assembly comprises a skin layer channel and a core channel; specifically, the skin layer channel is annular, and the core channel is circular.

[0057] S94: The composite fiber and other material yarns are woven into a fabric, and the fabric is heat set at 50-150 DEG C for 1-5 min, and then treated with a bio-based fluorine-free waterproof agent to obtain a roller shade fabric.

[0058] Use of the stiffened non-falling filament textile roller shade fabric as described above in the preparation of a textile roller shade.

[0059] Preferably, the stiffened non-falling filament textile roller shade fabric is used in roller shades, Roman shades, vertical shades, Venetian blinds, etc.

[0060] The stiffened non-falling filament textile roller shade fabric provided by the embodiments of the present application and the preparation method and application thereof have the following beneficial effects:

[0061] (1) The present application is obtained by selecting raw materials for weaving and finishing to obtain a roller shade fabric, and then cutting and assembling the fabric according to the size of the roller shade to obtain a finished product, wherein the roller shade fabric prepared by the present application meets the requirements of the composite roller shade, and the edges of the cut roller shade do not fall off permanently, and the roller shade fabric has the functions of sound absorption, heat insulation, light shielding and ultraviolet resistance, and the roller shade produced by the present application does not mold permanently and does not deform due to changes in conditions.

[0062] (2) The present application is designed by using a skin-core structure composite fiber, and the difference in melting point between the skin layer and the core is used to fill the gap between the adjacent low-melting-point yarns or other material warp and weft yarns after the skin layer melts during heat setting, and the low-melting-point yarns are firmly adhered to the adjacent yarns after cooling, forming a firm physical welding point, so that the entire fabric is instantly stiffened, thereby avoiding the negative effects that may be caused by the use of stiffening agents, starch organic matter and adhesives.

[0063] (2) At the same time, the synergistic effect of the hydrolysis-resistant agent, nano additives and graphene and other components endows the fabric with excellent weather resistance, and the fabric does not mold and maintains stable performance in a humid and hot environment; the fabric effectively solves the problems of deformation, yellowing and filament shedding of traditional roller shades, and simultaneously has environmental friendliness and durability, and is very suitable for use in high-end window decoration scenes. BRIEF DESCRIPTION OF DRAWINGS

[0064] Figure 1 is a product picture of the roller shade fabric prepared in Example 1. DETAILED DESCRIPTION

[0065] The technical solutions in the embodiments of the present application will be described clearly and completely below, and obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0066] In view of the above technical problems, the embodiment of the present application provides a stiffening non-fiber-dropping textile roller blind fabric and a preparation method and application thereof to solve the problems raised in the background art.

[0067] I. Preparation of different roller blind fabrics

[0068] Embodiment 1:

[0069] According to the mass fraction of each raw material of the low-melting-point yarn in the roller blind fabric, the following proportion of raw materials is weighed:

[0070] The components of the skin layer include, by mass fraction: polyethylene terephthalate-hexanedioic acid-pentamethylene diamine copolymer 30 parts, ethylene-vinyl acetate copolymer 10 parts, carbodiimide 5 parts, nano-TiO2 3 parts, and silane coupling agent modified nano-ZnO 2 parts;

[0071] The components of the core include, by mass fraction: polyethylene terephthalate 50 parts, silane coupling agent modified graphene nanosheet 5 parts, nano-SiO2 3 parts, and maleic anhydride grafted polyethylene 2 parts.

[0072] According to the following operation steps, the stiffening non-fiber-dropping textile roller blind fabric is manufactured:

[0073] The polyethylene terephthalate-hexanedioic acid-pentamethylene diamine copolymer, ethylene-vinyl acetate copolymer, carbodiimide, nano-TiO2, and silane coupling agent modified nano-ZnO are added to a double-screw extruder, blended and granulated at 180°C to obtain a skin layer master batch;

[0074] The polyethylene terephthalate, silane coupling agent modified graphene nanosheet, nano-SiO2, and maleic anhydride grafted polyethylene are added to a high-speed mixer, mixed at 140°C for 20 min, and then granulated by a double-screw extruder at 270°C to obtain a core master batch;

[0075] The skin layer master batch and the core master batch are respectively melted by a screw extruder, extruded from a spinneret through a composite spinning assembly to form a skin-core structure fiber, and the composite fiber is obtained after cooling, oiling, and winding; wherein the composite spinning assembly includes a skin layer channel and a core channel.

[0076] The composite fiber and other material yarns are woven into a gray cloth, which is subjected to heat setting treatment at 150°C for 5 min, and then treated with a bio-based fluorine-free waterproof agent to obtain a roller blind fabric.

[0077] The preparation method of the polyethylene terephthalate-hexanedioic acid-pentamethylene diamine copolymer includes the following steps:

[0078] Polyethylene terephthalate and adipic acid are mixed in a mass ratio of 1:1.1; heating is carried out at a temperature of 230-290℃, and a titanate catalyst is added to promote the reaction, to generate an esterification intermediate;

[0079] The piperazine is continuously added in steps, and the mass ratio of the piperazine to the total mass of the polyethylene terephthalate and adipic acid is 0.2:1; the piperazine reacts with the ester groups to form copolymer segments;

[0080] The reaction system is heated to 290℃, and vacuum is applied to remove water or alcohol generated in the reaction, to obtain the polyethylene terephthalate-adipic acid-piperazine copolymer.

[0081] The preparation method of the silane coupling agent modified nano ZnO comprises the following steps:

[0082] The nano ZnO powder is placed in a 5% ethanol aqueous solution, and is ultrasonically dispersed at 80℃ for 60 minutes to remove surface impurities and moisture; then the nano ZnO powder is washed with deionized water until neutral, and is vacuum dried at 100℃ for 24 hours;

[0083] The silane coupling agent is added to an ethanol-water mixed solution in a mass ratio of 9:1, and is stirred uniformly; acetic acid is used to adjust the pH to 5, so that the coupling agent is hydrolyzed and activated, and is left to stand for 20 minutes;

[0084] The pretreated nano ZnO is slowly added to the silane coupling agent solution, and is stirred in an 80℃ oil bath for 4 hours under nitrogen protection to prevent agglomeration; after the reaction is completed, the mixture is centrifuged at a speed of 5000-8000r / min for 15 minutes, and the precipitate is collected;

[0085] The precipitate is washed with anhydrous ethanol for 3 times to remove unreacted coupling agent; then the washed precipitate is dried in a vacuum drying oven at 80℃ for 12 hours to obtain the silane coupling agent modified nano ZnO powder.

[0086] The preparation method of the silane coupling agent modified graphene nanosheet comprises the following steps:

[0087] The graphene oxide is dispersed in anhydrous ethanol with a mass fraction of 1%, and 10% of the mass of the graphene oxide is added to the silane coupling agent KH570; ultrasonic stirring is carried out at 60℃ for 4h, and the silane coupling agent modified graphene nanosheet is obtained after centrifugal drying.

[0088] Example 2:

[0089] According to the mass fraction of each raw material of the low-melting-point yarn in the roller blind fabric, the following proportion of raw materials is weighed:

[0090] The components of the skin layer, by mass fraction, include: polyethylene terephthalate-hexanedioic acid-pentamethylene diamine copolymer 40 parts, ethylene-vinyl acetate copolymer 15 parts, carbodiimide 8 parts, nano-TiO2 5 parts, silane coupling agent modified nano-ZnO 3 parts;

[0091] The components of the core wire, by mass fraction, include: polyethylene terephthalate 60 parts, silane coupling agent modified graphene nanosheet 8 parts, nano-SiO2 5 parts, maleic anhydride grafted polyethylene 4 parts.

[0092] Among them, the manufacturing method of the low-melting-point yarn and the preparation method of each component in the low-melting-point yarn are operated by the method of Example 1; the fabric weaving method is also the same as Example 1.

[0093] Example 3:

[0094] The components of the skin layer, by mass fraction, include: polyethylene terephthalate-hexanedioic acid-pentamethylene diamine copolymer 35 parts, ethylene-vinyl acetate copolymer 13 parts, carbodiimide 6 parts, nano-TiO2 4 parts, silane coupling agent modified nano-ZnO 2.5 parts;

[0095] The components of the core wire, by mass fraction, include: polyethylene terephthalate 55 parts, silane coupling agent modified graphene nanosheet 7 parts, nano-SiO2 4 parts, maleic anhydride grafted polyethylene 3 parts.

[0096] Among them, the manufacturing method of the low-melting-point yarn and the preparation method of each component in the low-melting-point yarn are operated by the method of Example 1; the fabric weaving method is also the same as Example 1.

[0097] Comparative Example 1: Fabric treated with traditional stiffening agent

[0098] Take the composite fabric of the comparative yarn 1 and the terylene material yarn; the fabric weaving method is the same as Example 1.

[0099] The raw materials of the comparative yarn 1: polyethylene terephthalate 90 parts, 15 parts of acrylic stiffening agent, and 5 parts of polyurethane adhesive.

[0100] The preparation method of the comparative yarn 1: the stiffening agent and the adhesive are prepared into a 10% aqueous solution, and the fabric is treated by padding process, and then dried at 120°C and heat set at 150°C for 5 min.

[0101] Comparative Example 2:

[0102] Take the composite fabric of the comparative yarn 2 and the terylene material yarn; the fabric weaving method is the same as Example 1. Among them, the comparative yarn 2 has no core wire.

[0103] Comparative yarn 2 skin raw material: polyethylene terephthalate-adipic acid-pentaerythritol diamine copolymer 40 parts, ethylene-vinyl acetate copolymer 15 parts, wireless core material.

[0104] Comparative yarn 2 preparation method: after the raw material is granulated by a double screw extruder, it is melt spun, woven into a cloth, and then heat set at 150 DEG C for 25 min.

[0105] Comparative example 3

[0106] Take comparative yarn 3 and polyester material yarn to composite woven fabric; the fabric weaving method is the same as that of example 1. Among them, the comparative yarn 3 has no skin layer.

[0107] Comparative yarn 3 core raw material: polyethylene terephthalate 60 parts, silane coupling agent modified graphene nanosheet 8 parts, no skin layer material.

[0108] Comparative yarn 3 preparation method: after the raw material is granulated by a double screw extruder, it is melt spun, woven into a cloth, and then heat set at 150 DEG C for 20 min.

[0109] Comparative example 4

[0110] Take comparative yarn 4 and polyester material yarn to composite woven fabric; the fabric weaving method is the same as that of example 1. Among them, the raw material components of comparative yarn 4 are the same as those of example 1 but are not modified.

[0111] The components of the skin layer include, by mass fraction: polyethylene terephthalate 30 parts, ethylene-vinyl acetate copolymer 10 parts, carbodiimide 5 parts, nano TiO2 3 parts, nano ZnO 2 parts;

[0112] The components of the core, by mass fraction, include: polyethylene terephthalate 50 parts, graphene nanosheet 5 parts, nano SiO2 3 parts, maleic anhydride grafted polyethylene 2 parts.

[0113] II. Performance test of different roller blind fabrics

[0114] The following is a performance comparison test of examples and comparative examples according to the invention, combining material design principles and traditional technical defects, and comparing data from key indicators such as stiffness, weather resistance, and anti-falling silk performance; the results are shown in the following table 1.

[0115] Table 1

[0116]

[0117] Key indicator analysis

[0118] 1. Stiffness and structural stability

[0119] Example 1-3 advantage: the core of the sheath-core structure provides rigid support, and the skin layer forms a welding spot after melting, which makes the bending length increase by nearly 1 times (5.2-5.8 cm in Example 1-3) compared with the traditional method, and the hardness retention rate after water resistance is more than 85%, solving the problem of softening due to moisture absorption of traditional stiffening agents.

[0120] 2. Weather resistance and anti-aging ability

[0121] Example design: nano-TiO2 and modified ZnO form an ultraviolet shielding layer, and the hydrolysis-resistant agent neutralizes the polyester hydrolysis product, so that the example has almost no yellowing after 200h of ultraviolet irradiation, no mold growth in a humid heat environment, and stable strength.

[0122] 3. Anti-falling and durability

[0123] Core mechanism: the skin layer melts to fill the gap between the yarns, and the core nano-SiO2 increases the frictional resistance between the fibers, so that the number of falling yarns in the example is less than 1 / m 2 (after 20 windings), which is much lower than the traditional method (20 / m 2 ).

[0124] In summary, the present application has the following technical breakthroughs:

[0125] Sheath-core structure synergistic effect: taking advantage of the melting point difference between the skin layer and the core, the "melting adhesion-rigid support" dual function is realized, solving the contradiction between "hard and brittle" and "soft and collapsed" in traditional stiffening agents.

[0126] Multi-component functional additives: the synergistic effect of anti-hydrolysis agent, nano-ultraviolet shielding agent, and graphene heat conduction network makes the fabric still maintain stable performance in harsh environments such as humidity and ultraviolet light, breaking through the bottleneck of traditional organic materials prone to mold growth and high molecular materials prone to yellowing.

[0127] Process integration advantage: composite spinning and heat setting process do not require chemical stiffening agent, and permanent stiffening is achieved through physical welding, which has environmental friendliness and functional durability, and is suitable for high-end window decoration materials.

[0128] The above-described examples only describe the preferred embodiments of the present application and do not limit the scope of the present application. Without departing from the design spirit of the present application, various modifications and improvements to the technical solutions of the present application made by those skilled in the art shall fall within the protection scope determined by the claims of the present application.

Claims

1. A hard-stiffened non-linting textile roller shade fabric, characterized in that, The low-melting-point yarn and other material yarns are woven together; the low-melting-point yarn is a core-sheath composite fiber; The core-sheath composite fiber comprises a core and a sheath wrapped outside the core in a tubular shape; The components of the sheath, in terms of mass fraction, comprise: 30-40 parts of low-melting-point modified polyester, 10-15 parts of thermoplastic elastomer, 5-8 parts of hydrolysis-resistant agent, 3-5 parts of nano-TiO2, and 2-3 parts of silane coupling agent modified nano-ZnO; The components of the core, in terms of mass fraction, comprise: 50-60 parts of polyethylene terephthalate, 5-8 parts of silane coupling agent modified graphene nanosheet, 3-5 parts of nano-SiO2, and 2-4 parts of compatibilizer.

2. The stiffened non-linting textile roller shade fabric of claim 1, wherein, The other material yarns specifically comprise one or more of polyester, nylon, polypropylene, acrylic, and vinylon; the other material yarns are added with functional master batches to achieve the effects of ultraviolet resistance, flame retardation, or antibiosis; the materials of the sheath and the core can be regenerated raw materials.

3. The stiffened non-linting textile roller shade fabric of claim 1, wherein, The low-melting-point modified polyester is a polyethylene terephthalate-adipic acid-neopentyl diamine copolymer.

4. The stiffened non-linting textile roller shade fabric of claim 3, wherein, The preparation method of the polyethylene terephthalate-adipic acid-neopentyl diamine copolymer comprises the following steps: S31: mixing polyethylene terephthalate and adipic acid at a mass ratio of 1:1.1; heating at a temperature of 230-290℃, adding a titanate catalyst to promote the reaction, and generating an esterification intermediate; S32: continuously adding neopentyl diamine, the mass ratio of neopentyl diamine to the total mass of polyethylene terephthalate and adipic acid being 0.1:1-0.2:1; the neopentyl diamine reacts with the ester group to form a copolymer segment; S33: heating the reaction system to 290℃ and applying vacuum to remove water or alcohol generated in the reaction, to obtain the polyethylene terephthalate-adipic acid-neopentyl diamine copolymer.

5. The stiffened non-linting textile roller shade fabric of claim 1, wherein, The thermoplastic elastomer is an ethylene-vinyl acetate copolymer; the hydrolysis-resistant agent is a carbodiimide.

6. The stiffened non-linting textile roller shade fabric of claim 1, wherein, The preparation method of the silane coupling agent modified nano-ZnO comprises the following steps: S61: placing nano-ZnO powder in 5% ethanol aqueous solution, ultrasonic dispersing at 60-80℃ for 30-60 minutes to remove surface impurities and moisture; then washing with deionized water until neutral, and vacuum drying at 80-100℃ for 12-24 hours; S62: adding silane coupling agent into a 9:1 ethanol-water mixed solution at a mass ratio of 1:5-1:10, stirring uniformly, using acetic acid to adjust pH to 4-6 to activate the hydrolysis of the coupling agent, and standing for 10-20 minutes; S63: slowly adding the pretreated nano-ZnO into the silane coupling agent solution, stirring in an oil bath at 60-90℃ for 2-4 hours, and protecting against agglomeration by nitrogen; after the reaction is completed, centrifuging the mixture at a speed of 5000-8000r / min for 10-15 minutes to collect the precipitate; S64: washing the precipitate with anhydrous ethanol for 2-3 times to remove unreacted coupling agent; then drying the washed precipitate in a vacuum drying oven at 60-80℃ for 6-12 hours to obtain the silane coupling agent modified nano-ZnO powder.

7. The stiffened non-linting textile roller shade fabric of claim 1, wherein, The preparation method of the silane coupling agent modified graphene nanosheet comprises the following steps: The graphene oxide was dispersed in 1% anhydrous ethanol by mass fraction, 10% silane coupling agent KH570 by mass of the graphene oxide was added, and ultrasonic stirring was carried out at 60℃ for 4h. After centrifugal drying, the silane coupling agent modified graphene nanosheet was obtained.

8. The stiffened non-linting textile roller shade fabric of claim 1, wherein, The compatilizer is maleic anhydride grafted polyethylene.

9. A method of manufacturing a stiffened non-linting textile roller shade fabric as defined in claim 1, wherein, The method comprises the following steps: S91: low-melting modified polyester, thermoplastic elastomer, hydrolysis-resistant agent, nano-TiO2, and silane coupling agent modified nano-ZnO are added into a double-screw extruder, blended and granulated at 150-180℃ to obtain a skin layer master batch; S92: polyethylene terephthalate, silane coupling agent modified graphene nanosheet, nano-SiO2, and compatilizer are added into a high-speed mixer, mixed at 100-150℃ for 15-20min, and then granulated by a double-screw extruder at 260-280℃ to obtain a core master batch; S93: the skin layer master batch and the core master batch are respectively melted by a screw extruder, extruded from a spinneret by a composite spinning assembly to form a skin-core structure fiber, and then cooled, oiled, and wound to obtain a composite fiber; S94: the composite fiber and other material yarns are woven into a fabric, and then subjected to heat setting treatment at 50-150℃ for 1-5min, and then treated by a bio-based fluorine-free waterproof agent to obtain a roller blind fabric.

10. Use of the stiffened non-linting textile roller blind fabric according to claim 1 in the preparation of a textile roller blind.

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